Improvement in revolving fire-arms



A. L. SWEET. Revolving Fire-Arm.

No. 210,725. Patented Dec-.10,'l878.

WITNESSES INVENTOR Y N-PEI'ERS. PHOTO-L'THOGRPNR WASHINGTON. D. C.

UNITED STATES PATENT FFIGE.

ALONZO L. SWEET, OF NORWICH, CONNECTICUT, ASSIGNOR OF ONE-HALF HIS RIGHTTO THE BACON ARMS COMPANY, OF SAME PLACE.

IMPROVEMENT IN REVOLVING FIRE-ARMS.

Specification forming part of Letters Patent No. 210,725, dated December10, 1878; application filed September 6, 1878.

To all whom it may concern:

Be it known that I, ALoNzo L. SWEET, of Norwich, in the county of NewLondon and State of Connecticut, have invented certain new and usefulImprovements in Revolving Fire-Arms 5 and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

My invention relates to revolving fire-arms; and it consists in theconstruction and arrangement of devices for stopping on the halfcock, aswill be hereinafter more fully set forth.

The annexed drawing, to which reference is made, and which fullyillustrates my invention, represents a section of the workingparts of arevolver embodying my invention.

A represents the frame of a revolver, with recoil-shield B. C is thehammer, having the two notches as 00, for half-cock and full-cook. a isthe hammer-spring. b is the arm or pawl, pivoted on the hammer, andpassing through a slot in the recoil-shield, to engage with the ratcheton the end of the cylinder for rotating the same.

D is the trigger, with spring 61, and the point i, to catch in thenotches on.the hammer, the trigger being pivoted at e. In the front ofthe trigger D, a suitable distance below its upper end, is made arecess, in which is pivoted an arm, F. This arm extends forward, andlies in a groove in the lower strap of the frame, and the end of saidarm provided on its upper side with a rounded lug or projection, m, totake into the usual notches made in the outer surface of the cylinder,for holding the same stationary. Near the pivoted end the arm F isformed with a V-shaped notch, which fits on a corresponding projection,n, on the bottom of the recoil-shield. 0n the under side of the arm F isformed a shoulder, 8, against Which works a pin, 1). This pin isinserted in a hole made in the front edge of the trigger, and a spring,t, is below said pin, to hold the same against the shoulder s.

The stop, as usually arranged in revolving fire-arms is the mostdifficult to adjust, and. unless the stop is perfect the weapon isdangerous to the person using the same.

By my invention the stop or arm F is worked by the trigger, it beingconnected thereto by a joint, so that the stop must work with thetrigger.

in cooking the hammer, as soon as the halfcock notch is reached by thetrigger, the trigger-sprin g d throws the point i of the trigger intosaid notch. By this movement of the trigger the stop F is turned uponthe V-shaped projection n as a fulcrum, sufficiently far to retract thelug m from the notch in the cylinder, and leave the cylinder free to becarried forward by the pawl I), thus bringing the next chamber in linewith the barrel, at which time the spring-pin p in the trigger throwsthe stop into the notch in the cylinder, and looks it until thehalf-cock notch is reached again.

Safety in loading is also insured by the hammer being drawn back forhalf-cock only far enough to allow the cylinder to rotate, as then, evenif the hammer should accidentally slip off half-cock, there is not forceenough to explode the cartridge.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

In a revolving fire-arm, the combination of the trigger, the stopjointed tothe trigger, a fulcrum on or below the recoil-shield for thestop, and a spring in the trigger for adjusting the stop, allsubstantially as and for the purposes herein set forth.

In testimony that I claim the foregoing as my own I affiX my signaturein presence of two witnesses.

ALONZO LOUIS SWEET. \Vitnesses:

NoRRIs G. LIPPITT, STEPHEN B. MEECH.

